shabby's new kernel build script

#!/bin/bash

    # This is my usage information
    [ $# -eq 0 ] && { echo "Usage:
     $0 Kernel-name [Stock,CM,CM101]"; exit 1; }

    # This says if its a kernel compiled using *MY* defconfig :)
    # You may as well remove this
    #if [ $3 == "shabby" ];
    #then
        #DEFCONFIG=Shabbypenguin_d2-r530_defconfig
    #else
    #DEFCONFIG=cyanogen_d2-r530_defconfig
    #fi

    # These setup our build enviroment
    THREADS=$(expr 4 + $(grep processor /proc/cpuinfo | wc -l))
    MAKE="make -j${THREADS}"
    ARCH="ARCH=arm"
    CROSS="CROSS_COMPILE=/home/shabbypenguin/android/CM10/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/arm-eabi-"

    # Setup our directories now
    DIR=~/android/Kernels
    TOOLS=$DIR/tools
    KERNEL=$DIR/SGH-Krait
    PACK=$KERNEL/package
    OUT=$KERNEL/arch/arm/boot

    # These are extra variables designed to make things easier
    UPDATER=$TOOLS/Updater-Scripts/d2
    MODULES=$UPDATER/system/lib/modules
    KERNELNAME=$1
    KBUILD_BUILD_VERSION=$1
    export KBUILD_BUILD_VERSION

    # Set our Ramdisk locations
    STOCK=$DIR/Ramdisks/d2mtr
    CM=$DIR/Ramdisks/d2mtr-CM
    CM101=$DIR/Ramdisks/d2mtr-CM10-1

    # These are for mkbootimg
    PAGE=2048
    BASE=0x80200000
    RAMADDR=0x81500000
    CMDLINE='"androidboot.hardware=qcom user_debug=31 zcache"'

    # -----------------------------------------------------------------------------------------------
    # Dont mess with below here unless you know what you are doing
    # -----------------------------------------------------------------------------------------------

    export USE_CCACHE=1
    export $ARCH
    export $CROSS

    # This cleans out crud and makes new config
    #$MAKE clean
    #$MAKE mrproper
    rm -rf $MODULES
    rm -rf $PACK
    [ -d "$PACK" ] || mkdir "$PACK"
    [ -d "$MODULES" ] || mkdir -p "$MODULES"
    exec > >(tee $PACK/buildlog.txt) 2>&1
    $MAKE $DEFCONFIG

    # Finally making the kernel
    #$MAKE zImage
    #$MAKE modules

    # These move files to easier locations
    find -name '*.ko' -exec cp -av {} $MODULES/ \;

    # -----------------------------------------------------------------------------------------------
    # This part packs the img up :)
    # In order for this part to work you need the mkbootimg tools
    # -----------------------------------------------------------------------------------------------

    # This will base ramdisks location off $2
    if [ $2 == "Stock" ];
    then
        RAMDISK=$STOCK
    else
        if [ $2 == "CM" ];
        then
            RAMDISK=$CM
            else
            if [ $2 == "CM101" ];
            then
                RAMDISK=$CM101
            fi
        fi
    fi

    cd $PACK
    cp $OUT/zImage $PACK
    $TOOLS/mkbootfs $RAMDISK | gzip > $PACK/ramdisk.gz
    $TOOLS/mkbootimg --cmdline "$CMDLINE" --kernel $PACK/zImage --ramdisk $PACK/ramdisk.gz --pagesize $PAGE --base $BASE --ramdiskaddr $RAMADDR -o $PACK/boot.img
    rm -rf ramdisk.gz
    rm -rf zImage
    cp -R $UPDATER/* $PACK
    zip -r $KERNELNAME"-"$2".zip" * -x "*.txt"
    # -----------------------------------------------------------------------------------------------
    # All Done
    echo $KERNELNAME"-"$2 "was made!"